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Home >> Audi >> 2020 >> SQ8 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Cylinder Head, VALVETRAIN (4-Cylinder Direct Injection 2.0L 4V TFSI Engine (Ea 888EVO4)) (DPVA)) >> 15 Cylinder Head, VALVETRAIN >> Chain Drive >> Camshaft Timing Chain, Removing And Installing >> Removing

Camshaft Timing Chain, Removing And Installing: Removing

WARNING: This page is about a different car, the 2024 Audi Q5 and 2023 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the bearing bracket. Refer to BEARING BRACKET, REMOVING AND INSTALLING .

GWWA15-12409Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of damaging the engine by the timing mechanism skipping.

- Only let the engine turn in the direction of engine rotation.

-- Vibration damper, version 1. Refer to Figure: turn the crankshaft on the vibration damper using the Wrench - 21mm:T40263  -item 6-, Adapter:T40314  -item 1- and 24 mm socket -adapter- until the camshafts is at "TDC".

Fig 1: Vibration Damper - Versions
GWWA13-11436Courtesy of AUDI OF AMERICA, LLC

-- Vibration damper, version 2. Refer to Figure: use an offset open-end wrench - 24 mm to turn the crankshaft at the vibration damper so far -arrow-, that the camshafts are set to "TDC".

Fig 2: Vibration Damper - Versions
GWWA13-11436Courtesy of AUDI OF AMERICA, LLC

-- Remove the lower timing chain cover. Refer to LOWER TIMING CHAIN COVER, REPLACING .

-- Check the "TDC point" again.

-- Disengage the tension spring wire clip -4- from the oil pan upper section -arrow-.

GWWA15-12506Courtesy of AUDI OF AMERICA, LLC

-- Remove the guide pin -3- and the chain tensioner.

-- Remove the drive chain -1- for the oil pump from the three-layer chain sprocket and let hang at the Assembly Tool -2-.

-- Remove the bolts -arrows-.

Fig 3: Identifying Bolts
GWWA15-11390Courtesy of AUDI OF AMERICA, LLC

-- Install the Chain Tensioner Lever:T40243  on the cylinder head -lower arrows-.

Fig 4: Identifying Lever T40243 -Arrows-, Installation
GWWA15-11391Courtesy of AUDI OF AMERICA, LLC

-- Press the chain tensioner circlip -1- together and hold it.

-- Slowly press and hold the Chain Tensioner Lever:T40243  in the -direction of the arrow-.

TIP:

The chain tensioner is lubricated with oil and can only be pushed back slowly by applying constant pressure.

-- Lock the chain tensioner with the Locking Tool:T40435  .

GWWA15-12341Courtesy of AUDI OF AMERICA, LLC

-- Remove the Chain Tensioner Lever:T40243  .

-- Install the Camshaft Lock - Component 2:T40271/2  on the cylinder head.

GWWA15-12342Courtesy of AUDI OF AMERICA, LLC

-- Push the camshaft positioning tool in the splines of the chain sprocket -arrow B-.

-- If required, turn the intake camshaft with the Assembly Tool:T40427  slightly back and forth -A arrows-.

-- Bolt the Camshaft Lock:T40271/1  to the cylinder head.

GWWA15-12343Courtesy of AUDI OF AMERICA, LLC

-- Hold the exhaust camshaft using the Assembly Tool:T40427  . Remove the guide pin -1- and remove the tensioning rail -2- downward.

-- Turn the exhaust camshaft clockwise -arrow A- again until the Camshaft Locks:T40271/1  can be pushed in the chain sprocket splines -arrow B-.

-- Release the retainer -arrow- with a screwdriver and push the guide rail -1- off toward the front.

Fig 5: Removing Guide Rail
GWWN15-10962Courtesy of AUDI OF AMERICA, LLC

-- Remove the guide pin -1- and the guide rail -2-.

GWWA15-11717Courtesy of AUDI OF AMERICA, LLC

-- Remove the camshaft timing chain from the camshaft sprockets and remove downward.

CAUTION:

Risk of destroying the engine by collisions of the valves and the piston crowns.

- If the camshaft timing chain has been removed, then do not turn the crankshaft anymore.